<template>
  <div class="app-container">
    讲师保存
    <el-form label-width="120px">
      <el-form-item label="讲师名称">
        <el-input v-model="teacher.name" />
      </el-form-item>
      <el-form-item label="讲师排序">
        <el-input-number
          v-model="teacher.sort"
          controls-position="right"
          min="0"
        />
      </el-form-item>
      <el-form-item label="讲师头衔">
        <el-select v-model="teacher.level" clearable placeholder="请选择">
          <!--
数据类型一定要和取出的json中的一致，否则没法回填
因此，这里value使用动态绑定的值，保证其数据类型是number
-->
          <el-option :value="1" label="高级讲师" />
          <el-option :value="2" label="首席讲师" />
        </el-select>
      </el-form-item>
      <el-form-item label="讲师资历">
        <el-input v-model="teacher.career" />
      </el-form-item>
      <el-form-item label="讲师简介">
        <el-input v-model="teacher.intro" :rows="10" type="textarea" />
      </el-form-item>
      <!-- 讲师头像：TODO -->
      <!-- 讲师头像 -->
      <el-form-item label="讲师头像">
        <!-- 头衔缩略图 -->
        <pan-thumb :image="teacher.avatar" />
        <!-- 文件上传按钮 -->
        <el-button
          type="primary"
          icon="el-icon-upload"
          @click="imagecropperShow=true"
          >更换头像
        </el-button>
        <!--
v-show：是否显示上传组件
:key：类似于id，如果一个页面多个图片上传控件，可以做区分
:url：后台上传的url地址
@close：关闭上传组件
@crop-upload-success：上传成功后的回调 -->


        <image-cropper
          v-show="imagecropperShow"
          :width="300"
          :height="300"
          :key="imagecropperKey"
          :url="BASE_API + '/eduoss/fileoss'"
          field="file"
          @close="close"
          @crop-upload-success="cropSuccess"
        />




      </el-form-item>

      <el-form-item>
        <el-button
          :disabled="saveBtnDisabled"
          type="primary"
          @click="saveOrUpdate"
          >保存</el-button
        >
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
import teacherApi from "@/api/edu/teacher";
import ImageCropper from '@/components/ImageCropper'
import PanThumb from '@/components/PanThumb'

export default {

  components: { ImageCropper, PanThumb },
  data() {
    return {
      teacher: {
        name: "",
        sort: 0,
        level: 1,
        career: "",
        intro: "",
        avatar: "",

      },
        imagecropperShow:false,
        imagecropperKey:0,
        BASE_API:process.env.BASE_API,
      saveBtnDisabled: false, // 保存按钮是否禁用,
    };
  },
  created() {
    this.init();
  },
  watch: {
    $route(to, from) {
      console.log("watch $route");
      this.init();
    },
  },

  methods: {

      close(){
      this.imagecropperShow=false
      this.imagecropperKey=this.imagecropperKey+1
      },
      cropSuccess(data){
        this.imagecropperShow=false
        this.teacher.avatar=data.url
        this.imagecropperKey=this.imagecropperKey+1

      },

    init() {
      if (this.$route.params && this.$route.params.id) {
        debugger;
        const id = this.$route.params.id;
        this.getInfo(id);
      } else {
        this.teacher = {};
      }
    },

    updateTeacher() {
      teacherApi.updateTeacherInfo(this.teacher).then((response) => {
        this.$message({
          type: "success",
          message: "修改成功!",
        });
        //回到列表页面  路由跳转
        this.$router.push({ path: "/teacher/table" });
      });
    },

    getInfo(id) {
      teacherApi.getTeacherInfo(id).then((response) => {
        this.teacher = response.data.teacher;
      });
    },

    saveOrUpdate() {
      this.saveBtnDisabled = true;

      if (!this.teacher.id) {
        this.saveTeacher();
      } else {
        this.updateTeacher();
      }
    },

    // 保存
    saveTeacher() {
      teacherApi.addTeacher(this.teacher).then((response) => {
        this.$message({
          type: "success",
          message: "添加成功!",
        });
        //回到列表页面  路由跳转
        this.$router.push({ path: "/teacher/table" });
      });
    },
  },
};
</script>